S2.2 (AHL) The covalent model (2)
This is the second part of the Additional Higher Level material on S2.2 The covalent model. It covers the concept of combining atomic orbitals to form molecular orbitals resulting in sigma and pi bonds. It also covers the concept of hybridization where combinations of s and p atomic orbitals on the same atom result in the formation of new sp, sp2 and sp3 hybrid orbitals which can then lead to sigma bond formation...